THE FERX BULLETIN 



9 



parts as composing a single frond nor is there need for 

 the recently suggested name of "commonstalk" for a 

 part of the plant which is very clearly a stem. Both 

 Ophioglossum and Boirychium are comparable to the 

 parts above ground of the peony. The climbing parts 

 of Ly god iu m may be likened to the aerial stems of the 

 Solomon's seal or better to the stems of the ground- 

 nut (Apios), the scarlet runner (Phaseolus) or the 

 bind-weed (Ipomoca) . The "fronds" of Gleichenia 

 are even more stem-like than those of Lygodium and in 

 these are found buds which continue the development 

 of the stems. The whole subject is one worth investi- 

 gation by the morphologist. 



A NEW LYCOPODIUM FROM NEW HAMPSHIRE. 



By Sidney F. Blake. 



The original description ( Fl. Am. Sept. II, 653) of 

 Lycopodium tristachyum Pursh denotes a plant with 

 appressed leaves and three spiked peduncles. The plant 

 is further characterized by erect, crowded, very num- 

 erous branches and a subterranean stem. The spikes 

 vary in my experience from two to eight in number, 

 with a maximum length of 29 mm. 



From typical tristachyum as thus defined, a form of 

 this species which I found in southern Xe\v Hamp- 

 shire during the past summer differs so decidedly in 

 number of spikes, nature of leaves, and some other 

 characters as to warrant recognition as a distant va- 

 riety, which may be thus characterized : 



Lycopodium tristachyum Sharoxexse, var. 

 nov. Type Xo. 515. Herb. S. F. B. ; dryish good soil in 

 woods, Sharon Hillsboro County, New Hampshire ; 19 

 July 1909, S. F. B. 



Spikes single, longer than in L. t. tristachyum; 



